Machine for mixing concrete or the like.



No. 705,676. Patented luly29, 1902.;

w. J. JUDD. MACHINE FOR MIXING CONCRETE OR THE LIKE.

(Application filed Apr. 16, 1902.)

, (No Model.) 8 Sheers-Sheet I.

' No. 705,676. Patented JuIy'29, I902;

w. .1. Juan.

MACHINE FOR MIXING CONCRETEOB THE LIKE.

7 (Application filed 'r. '15, 1902. (IIO Model.) 8 Sheets-Sheet 2.

Patentd luly 29, I902.

w. JUDD. MACHINE 'FORMIXING concnen: on THE LIKE;

' a Sheets-Sheet 3.

(Application-filed Apr 15, 1902.)

(No Model.)

YEEZEE d I A; X f

No. 705,676. Patented July 29, I902.

' ,w. J. JUDD.

MACHINE FUR MIXING CONCRETE OR THE LIKE.

u (Application filed Apr. 15, 1902.) (No Model.)

8 Sheets-Sheet 4.

I mm VlLzf 255435 v E Mama 9.2 014 Patented Ji ly 2 9 1902'; I

w. .1. Juno. MAGl-IINE FOR MIXIN'GGONCRETE 0R THE- LIKE;

(Application filed Apr. 15, 1902.)

8 Sheets-Sheet 5 (No Model.)

I "7175 f E m: uoams PETERS on. moToumq. was mum's. u. c.

"No. 705,676. Patented July 29, I902. I

I I W. J. JUDD.

Momma Fonmxma comm-:15 on THE LIKE.

(Applicatio n flled Apr. 15, 1902. (No Model-.) 8 Shets-Sheet 6.

m: Nunms PETERS 20., pnofoufnnq WASHKNGTON. B4 c:

No. 705,676/ Patentedluly 29,- I902;

. W. J. JUDD.

MACHINE FOR MIXING CONCREfE OR THE LIKE.

(Application filed Apr. 15, 1902.

(No Model.) 8 Sheets-Sheet 2.

' NlTED STATES ATENT OFFICE.

\VILLIAM J. JUDD, OF NEW YORK, N. Y., ASSIGNOR TO FREDERICK O. AUSTIN, OF CHICAGO, ILLINOIS.

MACHINE FOR MIXING CONCRETE OR THE LIKE.

SPECIFICATION forming part of Letters Patent No. 705,676, dated July 29, 1902.

Application filed April 15, 1902. Serial No. 102,960. (No model.)

To all whom, it may concern:

Be it known that I, WILLIAM J J UDD, a citizen of the United States,residing atNew York, in the county of New York and State of New York, have invented a certain new and usefullmprovement in Machines for Mixing Ooncrete or the Like, of which the following is a specification.

The objects of my invent-ion are to rapidly and eifectively mix together the ingredients for forming a batch of concrete, mortar, or the like; to secure a quick and complete discharge of the mixed-up batch; to shorten the distance between the charging and discharge openings of the rotary mixing-receptacle and at the same time increase the capacity of the mixing-receptacle andadapt it to rapidly and effectively eject the batch when it is in position to discharge; to dispense with the use of blades or agitators within the mixing-recep- I tacle, and thereby avoid clogging and permit a free discharge of the batch; to so form the inner walls of the rotary mixing-receptacle that'its rotation will cause a quick and effective discharge or ejection of the batch; to provide in connection with a rotary mixing drum or receptacle a support therefor which is particularly adapted for large machines; to support the rotary mixing drum or receptacle in a way whereby the support therefor can be readily tilted and easily stopped at any time during its tilting movement; to balance the rotary mixing-drum and its tilting support,

whereby the latter can be easily tilted to any desired extent; to sustain the tilting support for a rotary mixing drum or receptacle upon a bed or base in a novel and improved way; to provide a hopper which can couple with and directly discharge into a rotary tilting mixing drum or receptacle when such drum or receptacle is in receiving and mixing position and which can be uncoupled from such drum or receptacle, so as to permit the same to be tilted for the purposeof discharging its contents; to automatically couple the hopper with the rotary mixing drum or receptacle when the same is brought into position for receiving and mixing; to avoid leakage when the hopper is coupled with a revolving mixing drum. or receptacle; to provide certain novel and improved devices for operating a tilting support for a rotary'mixing drum or receptacle from the driving power and for antomatically disconnecting the driving power from the tilting support when the latter reaches the desired limit of its movement either way; to prevent the materials which are being mixedwithinthe revolving mixingdrum or receptacle from splashing out through its discharge-opening; to close the dischargeopening of the rotary mixing drum or receptacle when such drum or receptacle is in mixing position, and to automatically open the discharge-opening when the rotary, drum or receptacle is brought into position for discharge, and to provide certain details serving to increase the general efficiency of mixing-machines for concrete and the like.

In the accompanying drawings, Figure 1 represents in end elevation a mixing-machine embodying the principles of my invention. Fig. 2 shows the same in side elevation, the rotary mixing-receptacle in this and in the preceding figure being shown in position for receiving and mixing. Fig. 3 is a sideelevation of the machine, showing the mixing-receptacle in position for discharging.- Fig. 4: is an end elevation similar to Fig. 1-, but showing the opposite end of the machine. Fig. 5 is a longitudinal section taken on a vertical central plane through the machine. Fig. 6 is a top plan view with the rotary'mixing-receptacle removed. Fig. 7 is a side elevation of a portion of the machine, showing the rotary mixing-receptacle arranged upon a tilting frame or support which is trunnioned or pivotally supported upon the base or bed frame. Fig. 8 is a top plan view of the pivoted or trunnioned frame of Fig. 7 with the rotary mixing-receptacle removed.

Referring to the first six figures, A indicates a cubiform mixing-receptacle having charging and discharge openings 1 and 2, Fig. 5, respectively, atdiagonally opposite corner portions. This mixing-receptacle is arranged to rotate about an axis passing through its oppositely-arranged charging and discharge openings and is supported to tilt or oscillate about a horizontal axis transverse to its axis of rotation and passing relatively between its charging and discharge openings, so that while it is being rotated it can also fl. i

be tilted about an axis transverse to its axis of rotation in order to position its axis of rotation horizontally, or substantially so, for the purpose of mixing its contents or to bring its axis of rotation into an inclined position, and thereby allow its contents to be discharged through the discharge -opening, as may be desired. Practically, therefore, the mixingreceptacle rotates about a tilting axis which passes through its diagonally opposite charging and discharge openings and tilts about a horizontal axis which is transverse to its axis of rotation and relatively between its charging and discharge openings-that is to say, the axis about which it tilts is in point of position between its charging and discharge openings, although such axis may either intersect or be above or below the longitudinal axis about which the mixing-receptacle revolves.

The charging and discharge openings of the mixing-receptacle are prolonged or extended through necks or hollow journals B B, which project from diagonally opposite cornerportions of the receptacle. These necks or hollow journals bear upon antifriction-rolls O, which are in turn arranged upon a tilting support D, adapted to move in conformity with and for the purpose of effecting the desired tilt on the part of the axis about which the mixing-receptacle rotates. The tilting support D is capable of partial rotation in opposite directions about an axis transverse to the axis about which the mixing-receptacle revalves and has a range of movement sufficient to permit it to vary the angle of the axis of rotation of the mixing-receptacle according to requirements. While the mixing-receptacle partakes of the motion of its movable sup port when the latter is operated to vary the angle of the axis about which such receptacle rotates, the movement of the mixing-receptacle caused by the oscillation or partial rotation of the support D may be conveniently and comprehensively defined as a tilting movement, since the axis about which the mixing-receptacle rotates is tilted, and, moreover, opposite portions of the receptacle in either case tilt about an axis-transverse to the axis aboutwhich the receptacle as a whole rotates, and likewise while the support D makes a partial rotation about an axis transverse to the axis of rotation of the mixingreceptacle the end portions of the said support,which sustain the mixing-receptacle,necessarily have a tilting movement.

The support D is sustained by and works upon suitably-arranged rotary bearings, such as antifriction-rolls 3 and 4t, and is in the nature of a segmental frame or a frame having a segmental bearing portion which bears on the antifriction-rolls and which is shown as being composed of segmental side portions 5 5, which bear upon the antifriction-rolls, the latter being in turn supported upon the baseframe E. With such arrangement the segmental sides 5 can be tied together by any of axis of revolution of the latter about an axis around which the tilting support oper-' ates.

The hollow journals B B provide suitablyprolonged charging and discharge passages or openings and also project from the cubiform box to an extent to permit them to properly engage the antifriction-rolls O. The rolls 0 are arranged to engage these journals at opposite sides thereof, so as to prevent lat-' eral displacement of the mixing-receptacle. To avoid displacement of the mixing-receptacle in a direction coincident with its axis of revolution, the hollow journals are provided with annular olfse'ts 6 in which the antifriction-rolls engage. receptacle is in position to receive the materials and to mix them together, its axis of rotation is preferably horizontal, or substantially so, and when in such position it receives the materials from a hopper G, which is supported by a frame-standard G.

The walls of the hopper are arranged to direct materials thrown therein toward its discharge -opening, which registers with the charging-opening of the mixing-receptacle when the latter is in receiving position, as in Fig. 5. rials passing from the hopper to the mixingreceptacle,the discharge-opening for the hopper is essentially formed through a neck 8, arranged to telescope or couple with the hollow journal B of the mixing-receptacle when such receptacle is in position to receive from the hopper,as best illustrated in Fig.5. With such arrangement the hopper is movably supported, whereby it can be moved away from the mixing-receptacle when it is desired to turn or tilt the latter into position for discharging its contents. As a simple arrangement the hopper can be hinged at its upper portion upon the standard, as at 9, whereby its lower discharge end can swing toward and away from the'mixing-receptacle. Where the hopper is thus arranged as a pendent device, its short discharge neck or spout '8 can project laterally from the side 10 of the hopper which is opposite the mixing receptacle, which said side may normally stand on or about a vertical plane, while the remaining sides of the hopper will converge toward its discharge-opening. In Fig. 5 the discharge neck or spout of the hopper is shown as form- When the mixing-' In order to prevent escape of mate-' IIO ing a telescopic joint with the hollow journal I B of the mixing-receptacle, and in order, therefore, to rock or til tthe latter the pendent hopper must be swung away from the mixing-receptacle and in a direction lateral to a plane transversely intersecting the ho]- low journal B. As shown, the neck or short spout 8 of the hopper is adapted to enter the hollow journal B of the mixingreceptacle. This arrangement avoids leakage when the hopper is discharging into the mixing-receptacle and at the same time it permits the mixing-receptacletobecontinuouslyrotated. The discharge-opening of the mixing-receptacleis normally closed by a valve or door H,which is hinge-supported upon the movable support for the mixing-receptacle and arranged so that when the mixing-receptacle is .brought into position for discharging its contents the said door will open the discharge-aperturef As a preferred arrangement and matter of f urtherim provement, the door H is a gravitydoor and made of such weight that it will normally hang as in Fig. 3 when the mixing-receptacle is in position to discharge. With such arrangemcnt the hinged pendent door will automatically close against the hollow dischargejournal B of the mixing-receptacle when the latter is brought to the position shown in Fig. 5, and when the mixing-receptacle is brought into discharging position, as in Fig. 3, its hollow discharge-journal will leave the pendent door, as illustrated, and thereby open the discharge aperture. The support shown for said door comprises a yoke 11, secured upon the movable support D and arranged to straddle the journal B, and abent arm 12, secured to the door and hinged to the yoke, so as to permit the door to readily accommodate itself to the discharge-opening or end of the journal B under different conditions. By such arrangement a larger quantity of material can be mixed, and-splashing out through the discharge opening will be avoided. Also when the mixing-receptacle is being rapidly turned or tilted to bring it into position for discharge its contents will not be thrown out from the discharge-opening to an undesirable extent, since in such case this gravity door or valve will serve as a deflector against which the materials ultimately discharged from the mixing-receptacle will impinge.

The form of rotary mixing-receptacle shown permits the materials to be thoroughly and rapidly mixed together, and when such receptacle is turned or tilted so as to incline its axis of rotation and place it in position for discharge the rotation of the mixing-receptacle while in such position will in practice cause a quick clean discharge, which serves to empty the receptacle of its contents. This discharge is characterized by a quick and forcible ejection of the contents of the mixing-receptacle.

In connection with the rotary mixing-receptacle I provide mechanism whereby thepower employed for rotating such receptacle about an axis passing through its opposite charging and discharge openings can also be employed for turning or tilting it from one to the other of its two extreme positions--viz., from its chargin g to its discharging-position, and vice versa.

I also provide mechanism whereby the tilting movement of the rotary mixing-receptacle will be automatically arrested when such receptacle has reached either of its two extreme positions. Broadly considered, the abovementioned devices for tilting or tipping the mixing-receptacle and for automatically arrestingits tilting or tipping motion can be employed in connection with a rotary tilting or tipping mixing receptacle or drum of any known or desired form, and likewise the hopper hereinbefore described can alsobe employed in connection with other forms of rotary tilting mixing-receptacles having oppositely-arranged charging and discharge openings. a

In connection with the movable hopper I provide means whereby it can be readily moved away from the mixing-receptacle whenever it is desired to tilt or tip the latter from its receivingto its discharging position, and I also provide means whereby the hopper is automatically brought into cooperative relationship with the mixing-receptacle when the latter is brought from its discharging to its receiving position. The means or devices thus employed for operating the hopper can also be employed in connection with other desired or suitable forms of mixing-receptacles. More specifically referring to devices herein illustrated and embodying the principles of my invention, the rotary mixing-receptacle is provided with a sprocket I for an endless driving chain or cable K. This driving chain or cable passes aboutand is operated by a driving-sprocket L, Fig. 1, on the base-frame or any suitably-supported standard 13 and is conveniently guided by pulleys 14 15 on the movable support for the rotary mixing-receptacle. Bysuch arrangement the drivingear, comprising an endless chain passing about pulleys on the tilting support and rotary drum or mixing-receptacle, will maintain a uniform relationship to the drum or receptacle and tilting support, since the pulleys on the support will be maintained at a fixed distance from the pulley on the rotary mixing drum or receptacle. The driving-sprocket L revolves and the rotary mixing-receptacle tilts about a common axis, and hence by properly positioning the guide-pulleys 14 and 15 upon the movable support for the rotary mixing-receptacle the tilt or rotary adjustment of such support about said axis for the purpose of tilting or tipping the rotary mixing-receptacle can be effected Without causing the driving-chain to either slacken or become unduly taut. When the mixing receptacle is in position to receive materials from the gravity-hopper, the latter willhangin position to couple or connect with the mixing-receptacle and to discharge therein, as best illustrated in Figs. 2 and 5. When,however,the movable support D for the mixing-receptacle is operated to tilt or tip the latter and bringit into position for discharging its contents, as in Fig. 3, the hopper can be caused to move or swing in a direction away discharge its contents.

from the mixing-receptacle, and therebyuncouple therefrom, so as to permit the movable support and the mixing-receptacle to shift from the position shown in Figs. 2 and 5 to the position shown in Fig. 3. As one way of attaining such result a transversely-arranged leverM is fulcrumed upon the stationary base orframeEand employed forswinging thehopper in a direction away from the mixing-receptacle so as to uncouple the hopper from the mixing-receptacle when it is desired to cause the latter to tilt or tip in a direction to The lever M can be fulcrumed upon an upright portion 16 of the base, as in Fig. 1, and have one of its ends connected with a bar or arm 17, which is se cured to one side of the hopper. The connection shown between the lever M and the bar or arm 17 on the hopper consists of a rod 18, attached to the lever and extending upwardly through an opening in the bar 17. The rod 18 has thereby a slidingconnection with the bar 17, the extent of its movement independently of the bar being limited by stops 19 and 20 on the rod. When, therefore, the handle end of the lever M is depressed, its opposite end will rise, and thereby move rod 18 upwardly, and as the result of such action stop 20 will be forced against the lower inclined portion of bar 17, and thereby cause the hopper to which bar 17 is secured to swing in a direction away from the mixingreceptacle and disconnect or uncouple its discharge-passage from the charging-opening of the mixing-receptacle. This action also frees the bar 17 from acatch 21, which is arranged upon the movable support D and positioned to engage under a short horizontal portion 17 Fig. 5, of the bar 17, it being observed that the lower portion of this bar is bent to form a shoulder under which catch 21 can engage, so as to normally hold the support D against movement, and that its lower terminal portion is, inclined, as hereinbefore mentioned. After the hopper has been thus swung away from the mixing-receptacle, as indicated by dotted lines in Fig. 5, the support D can be partially rotated, so as to tilt the mixing-receptacle into position for discharging its contents, as in Fig. 3, and during such movement on the part of the support for the mixing-receptacle its catch or lip 21 will ride upwardly along the bar 17 and gradually permit the hopper to fall or swing back to its normal position. When the support D for the mixing-receptacle is operated in a reverse direction, so as to bring the mixing-receptacle from the position shown in Fig. 3 to the position shown in Fig. 5, the catch or stop 21 on the movable support will ride downwardly along the bar 17 and force and hold the hopper away from the mixing-receptacle until the latter is in receiving position, at which juncture the lip will clear the upright portion 17 of the bar 17, and thereby allow the hopper to swing into position to couple or connect with the mixing-receptacle,

from its receivingopening.

as shown in full lines in Fig. 5. When, therefore, the mixing-receptacle is in receiving position, it is locked or held against tilt, and when it is desired to tilt such receptacle so as to position it for discharge it is unlocked and the hopperis uncoupled or disconnected On the other hand, when the mixing-receptacle is brought into receiving position the hopper automatically connects or couples with its receivingopening. When the mixing-receptacle is in position to discharge, theend thrust incident to such position is taken by an antifrictionroll N, Fig. 5, carried by the movable support D and arranged to rotate about an axis at right angles to the axis about which the mixing-receptacle rotates, the mixing-receptacle being in such case provided with an annular race or bearing 22, which engages the roll N. Any other suitable form of roll or ball bearing may, however, be provided for thus sustaining this end thrust of the mixing-receptacle when the latter is in position to discharge its contents. The hand-lever M can also be employed for operating clutches whereby the driving power can be connected with the movable support D, so as to operate the latter. As best illustrated in Figs. 1 and 6, 0 indicates a transversely-arranged counter-shaft havinga sprocket or pulley 23,which is connected by a link or chain belt 24 or other suitable power-transmitting connecttion with a pulley or sprocket 25 on adriving-shaft 26, which latter carries the driving sprocket-or wheel L,hereinbefore described. The axis of this driving-shaft L is in alinement with the axis about which the movable support D makes its partial rotations and about which the mixing-receptacle tilts or tips. 'The counter-shaft O is provided with a couple of loose winding-drums 27 and 28, Fig. 6, the former for a chain or cable 29, which connects withopposite end portions of the movable support D, and the latter for a chain or cable 30, which likewise connects with opposite ends of said movable support. These chains or cables 29 and 30 are arranged to relativelywind in opposite directions upon their said Winding-drums, whereby while the counter-shaft O rotates in one direction only the movable support D will be moved in one or the other direction, according to which one of the two winding-drums is in action. The winding-drum 27 is provided with a clutchsection 31, and the winding-drum 28 is provided with a clutch-section 32, and between these two clutch-sections is a double clutchsection 33, which is keyed or feathered upon the counter-shaft 0, so as to rotate therewith and also slide thereon. When, therefore, the double clutch-section 33 is shifted so as to engage the clutch-section on one of the winding-drums, the cable passing about such drum will be operated in a way to positively move the support D in a direction to tilt the mixing-receptacle from its receiving to its discharging receptacle, while the other cable will simply wind upon and unwind from they drum-about which it passes. On the other hand, when clutch-section 33 is shifted to engage the clutch-section of the above last-men: tioned winding-drum the latter will operate its cable in a way to positively move the support F in a direction to restore the mixingreceptacle to its receiving position, while the other cable will simply wind upon and unwind from the winding-drum about which it passes.

In Fig. 6 the movable support D for the mixing-receptacle is understood to be in position to place the charging-opening of the mixing-receptacle in register with the discharge-opening of the hopper. Under the arrangement shown in said figure the movement of support D in a direction to bring the mixing-receptacle into position for discharging its contents can be efiected by bringing clutch member 33 into clutch with the clutch member 31, whereby the winding-drum 27 will rotate with shaft 0 in a direction to wind up the cable portion shown at the right of said drum and pay out the cable portion shown at the left of the drum, while, on the other hand, the drum 28 being loose on the shaft will be revolved by the action of cable 30 in a direction the reverse of the rotation of drum 27, the portion or cable 30 at the right of drum 28 being wound on the drum while its portion at the left of such drum pays out. In bringing the mixing-receptable from its discharging to its charging position the converse of the foregoing-described operation takes place. The clutch 33 can be shifted by a vibratory clutch-lever 34, which latter can in turn be operated from lever M through the medium of a bell-crank 35, Fig. l, pivoted on the base-frame, a link 36 connecting lever M with one arm of the bell-crank and a connecting-rod 37 connecting the other arm of the bell-crank with the clutch-lever 34. By such arrangement I provide a clutch device and a clutch-shifter whereby the power employed to continuously revolve the mixing-receptacle can at will be applied for moving the support for the mixing-receptacle in either direction.

In order to guide the chains or cables 29 and 30, I pass them about pulleys 38 and 39, Fig. 6, on a shaft 40, which is supported by the base-frame.

When the movable support for the rotary mixing-receptacle reaches either of the two extremes of its required movement, the clutch which is in positive connection with driving power is automatically freed therefrom, so as to assert the movement of the movable support at a proper moment. As a way in which this can be attained I secure upon one of the cables a stop 41, Fig. 6, and suitablysupport upon the base-frame a clutchshifting rod P, which is provided with a pair of stopsor abutments 42 and 43 and pivotally connected with an arm 44 of the clutch-lever 34. When, therefore, clutch member 33 is placed tents. On the other hand, when clutch memher 33 is placed in clutch with clutch member 32 the movable support for the mixing-receptacle will be operated in a direction to bring the latter into receiving position, and at a proper moment such movement of the movable support for the rotary mixing-receptacle will be checked by reason of stop 41 moving with cable 30 from left to right and acting against stop 43 on rod P, so as to shift the latter in a direction to cause clutch member 33 to separate from clutch member 32. By such arrangement the movable support for the mixing-receptacle is automatically disconnected from the driving power when it reaches the two extremes of its desired extent of movement, which said two extremes of movement determine the receiving and discharging positions of the rotary mixingreceptacle.

In order to swing the hop er away from the mixing receptacle and simultaneously therewith to shift clutch member 33 into clutch with the clutch member on windingdrum 27, it will only be necessary for the attendant to depress the handle end of lever M, which latter will thereby be swung in a direction to cause stop 20, Fig. 2, to act against the lower inclined end portion of the arm or bar 17 on the swinging hopper, and also to cause the clutch-lever 34, through the medium ofits connections with lever M, to throw clutch member 33 intoclutch with the clutch member 31. When the mixing-receptacle is in position to discharge and it is desired to cause it to move into position to receive from the hopper, the attachment will raise the handle end of lever M, whereby the latter, through the medium of its connections with the clutch-lever 34, will cause such clutchlever to operate in a direction to throw clutch member 33 into clutch with clutch member 32 on the Winding-drum 23. When the movable support for the mixing-receptacle is thus caused to move in a direction to shift the mixing-receptacle from its discharging to its receiving position, the lip or projection 21 on the movable support will engage arm 17, and thereby swing and maintain the hopper away from the mixing-receptacle until such projection 21 passes below the lower horizontal portion 17 of the bar or arm I), at which juncture the arm and hopper will swing back into the position shown in Fig. 5.

Figs. 7 and 8 illustrate a tilting frame D, pivoted-or trunnioned upon side standards IIO of the bed or base frame and employed in place of the segmental tilting frame D, hereinbefore described. Where the pivoted frame D is thus employed in place of the segmental tilting frame D, all of the other matters illustrated by the first six figures can be applied, as will be understood, without further illustration and description, and hence various matters shown in the first six figures are omitted from Figs. 7 and 8 simply for convenience in illustrating the use of a pivoted frame. It is also understood that the hopper and the mechanism or devices for connecting and disconnecting the driving power With and from the tilting support can be employed in connection with any other desired form or construction of tilting support and with any suitable form or construction of rotary tilting mixing drum or receptacle.

With further reference to the rotary tilting cubiform mixing-receptacle illustrated, I am enabled by such construction and arrangement to provide a batch-mixer of large capacity without undesirably prolonging the machine and to quickly and efiectivel y discharge the batch of material therefrom. I am also enabled by such construction and arrangement to dispense with the use of mixingblades arranged within the mixing-receptacle and to rapidly and effectively mix the materials without clogging and to discharge the same more freely and perfectly than where such mixing-blades are used. This rotary tilting mixing-receptacle may be of a cube or practically of a cube shape, or its shape may be somewhat modified Without departing from the general principles of a mixing-receptacle in the precise form of a cube-as, for example, the mixing-receptacle could be somewhat prolouged in the direction of its axis at the expense of making a longer receptacle or.

the angles of its sides could be somewhat varied or its sides could be multiplied. It is understood, therefore, that I desire to broadly cover a cubiform or polyhedric rotary tilting receptacle having charging and discharge openings, respectively, at opposite corners and respectively adapted and arranged for admitting a batch of materials and for discharging the batch when mixed, but that I regard a cubiform receptacle substantially as shown and operated as a matter of further and special improvement.

I am aware that rotary cubiform or polyhedric concrete-mixing receptacles have heretofore been proposed, as evidenced by Letters Patent of the United States No. 306,522, to E. L. Ransome, dated October 14:, 1884; No. 366,591, to J. Lundie,,dated July 12, 1887, and No. 467,802, to Pitchford and Cooper, dated January 19, 1892. These patents, however, do not embody the feature of a rotary cubiform or polyhedric mixingreceptacle arranged to revolve about a tilting axis and having openings at diagonally opposite corners or vertices, respectively, for receivinga batch of materials and for discharging the mixedup batch. In the machines shown in said patents the batch is dumped by providing the receptacle with a side door, which is opened to permit the discharge when the rotary receptacle is brought to a standstill. In accordance with my invention, however, the rotary receptacle revolves about a tilting axis extending through opposite corners or vertices formed by intersecting planes, whereby the charge or batch will dump or discharge when the axis of rotation is tilted and while the receptacle is rotating. This arrangement insures rapid and thorough mixing of the materials without the assistance of mixingblades, which induce clogging of the materials and retard the discharge, it being also observed that the plane surfaces arranged to form angles within the rotary tilting receptacle will keep up the agitation of the materials to the point where the batch enters the discharge-opening. The rotary mixers of said patents do not,therefore, attain the improved results developed and attained by my invention.

What I claim as my invention is- 1'. In a mixing-machine for concrete and the like, a cubiform rotary mixing-receptacle provided at diagonally opposite corner portions with charging and discharge openings respec tively for receiving a batch of materials, and for discharging the mixed up batch, said mixing-receptacle being arranged to revolve about a tilting axis which can be tilted in opposite directions for the purpose set forth.

2. In a mixing-machine for concrete and the like, a rotary cubiform mixing-receptacle arranged to revolve about a tilting axis passing through diagonally opposite corner portions, and provided at such corner portions with oppositely-positioned charging and discharge openings adapted for respectively receiving a batch of materials and for discharging the mixed-up batch; and a tilting support for the rotary, cubiform mixing-receptacle arranged to tilt in opposite directions about an axis transverse to the axis of rotation of said mixing-receptacle.

3. In a batch-mixing machine for concrete and the like, a polyhedric mixing-receptacle arranged to revolve about a tilting axis passing through opposite corners or vertices formed by intersecting planes, and provided at such portions with oppositely-positioned charging and discharge openings adapted for respectively receiving a batch of materials and discharging the mixed-up batch; and a tilting support for the rotary, polyhedric mixing-receptacle arranged to tilt about an axis transverse to the axis of rotation of said mixing receptacle and relatively between the charging and discharge openings of the latter.

4. In a mixing-machine for concrete and the like, a rotary, cubiform mixing-receptacle provided at diagonally opposite corner portions with hollow journals forming charging and discharge openings'adapted for respectively receiving and discharging a batch; and a tilting support for said mixing-receptacle provided with bearings for the hollow journals of the latter and arranged to tilt about an axis transverse to the axis of rotation of the rotary, cubit'orm mixing-receptacle and relatively between the hollow journals of such mixing-receptacle.

5. In a batch-mixing machine forconcrete and the like, a rotary cubiform mixing-receptacle provided at diagonally opposite corner portions with hollow journals forming charging and discharge openings adapted for respectively receiving and discharging a batch; a tilting support for said mixing-receptacle provided with bearings for the hollow journals thereof and arranged to tilt about an axis relatively between such hollow journals and transverse to the axis about which the mixing-receptacle revolves; power-transmitting mechanism for continuously rotating the mixing-receptacle whereby it can be revolved while receiving, mixing, and discharging; and mechanism for operating the tilting support so as to tilt the axis of rotation of the mixingreceptacle.

6. In a batch-mixing machine for concrete and the like, a substantially cubiform, rotary mixing-receptacle provided at diagonally opposite corner portions with hollow journals forming charging and discharge passages or openings adapted for respectively receiving and discharging a batch; a tilting support for the mixing-receptacle having antifrictionrolls which engage the hollow journals; mechanism for tilting said support; mechanism for rotating the mixing-receptacle; and means for applying the driving power to the mechanism employed for tilting the support.

7. In a machine for mixing concrete and the like, a'substantially cubiform rotary mixingreceptacle having charging and discharge openings at diagonally opposite corner portions; a tilting support for the rotary mixingreceptacle; mechanism for applying the driving power to the rotary mixing-receptacle;

and mechanism for applying the driving.

power to the tilting support so as to tilt the same.

8. In a machine for mixing concrete and the like, a substantially cubiform, rotary mixingreceptacle having charging and discharge openings at diagonally opposite corner portions; a tilting support for the rotary mixingreceptacle; mechanism for tilting said support in opposite directions; mechanism for arresting the tilting action of the support; and mechanism for applying the driving power to actuate the mechanism for tilting the support.

0. In a machine for mixing concrete and the like, a substantially cubiform, rotary mixing-receptacle having charging and discharge openings at diagonallyopposite corners; poweractuated mechanism respectively for rotating the mixing-receptacle and tilting the support therefor; mechanism involving a clutch for applying and disconnect ing the power to and from the tilting support so as to tilt the latter when the power is thus applied, and arrest the tilting action of such support when the power is disconnected therefrom.

10. In a machine for mixing concrete and the like, a rotary, polyhedric mixing-receptacle substantially as set forth provided at opposite corner portions vertices with hollow rotary mixing-receptacle.

12. In a machine for mixing concrete and the like, a rotary mixing-receptacle having oppositely-arranged charging and discharge openings and arranged to revolve about an axis extending through its charging and discharge openings; a tilting support for the rotary mixing-receptacle consisting of a frame having a segmental base; and rotary bearings forming a way along which the segmental base is arranged to move in a curvilinear path.

13. In a machine for mixing concrete and the like, a rotary mixing-receptacle; a support for the rotary mixing-receptacle comprising a tilting frame having a curved base; and antifriction-rolls engaging said curved base and supporting the tilting frame; the curved base and the supporting-rolls being relatively arranged to permit the tilting frame to turn about an axis transverse to the axis about which the mixing-receptacle revolves andto thereby tilt such axis.

14:. In a machine'for mixing concrete and the like, a rotary mixing-receptacle; a support for the rotary mixing -receptacle arranged to turn about an axis transverse to the axis about which the mixing-receptacle revolves; rotary bearings upon which the support for the mixing-receptacle moves in direction to tilt the latter; and mechanism for rotating the mixing-receptacle while the support therefor is being turned and tilted.

15. In a machine for mixing concrete and the like, a tilting frame having segmental bearing portions; a rotary mixing-receptacle journaled at opposite ends of the tilting frame which latter turns about an axis transverse to the axis about which the mixingreceptacle revolves; rotary bearings upon ICO which the tilting support is arranged to move; mechanism for revolving the mixingreceptacle while it is being tilted; and mechanism for arresting the tilting motion of the support for the mixing-receptacle.

16. In a machine for mixing concrete and the like, a rotary mixing-receptacle a tilting support for the rotary mixingreceptacle; and power-transmitting connection for operating the rotary mixing-receptacle comprising a power-driven endless chain or belt passing about pulleys respectively connected with the rotary mixing-receptacle and the tilting support therefor so as to maintain an invariable relationship.

17. In a machine for mixing concrete and the like, a rotary mixing-receptacle; a tilting support for the rotary mixing-receptacle; a driving-pulley positioned to rotate about an axis transverse to the axis of revolution of the mixing-receptacle, the said pulley and the tilting support being arranged to operate about an axis common to both of them; a pulley fixed on the rotary mixing-receptacle; guide-pulleys arranged upon the tilting support; and an endless chain or belt arranged to pass about all of said pulleys.

18. In a mixing-machine for concrete and the like; a rotary mixing-receptacle; a tilting support for the rotary mixing-receptacle; a rotary winding-drum; a chain or cable passing about the rotary winding-drum and connected with opposite end portions of the tilting support; and a clutch device for connecting and disconnecting the winding-drum with and from suitable driving power.

19. In a machine for mixing concrete and the like, arotarymixing-receptacle; atilting support for the rotary mixing-receptacle; a pair of loosely mounted winding drums; chains or cables passing about the windingdrums respectively in reverse direction and connected with opposite end portions of the tilting support; and a clutch device alternately connecting the winding-drum with suitably-applied driving power.

20. In a machine for mixing concrete and the like, arotary mixing-receptacle; a tilting support for the rotary mixing-receptacle; two loosely-mounted winding-drums; chains or cables passing about the winding-drums respectively in reverse directions and connected with opposite end portions of the tilt ing support; a clutch device for alternately connecting the winding-drums with the driving power; a stop on one of the chains or ca ble; and a clutch-shifting device which is actuated by said stop when the tilting support reaches either end of its required movement. i

21. In a machine for mixing concrete and the like, a rotary mixing-receptacle; a tilting support for the rotary mixing-receptacle;

support for the rotary mixing-receptacle; and mechanism for reversibly applying the driving power to the tilting support so as to tilt the latter alternately in opposite directions, and involving a vibratory controlling-lever.

23. In a machine for mixing concrete and the like, a rotary mixing-receptacle; a tilting support for the rotary mixing-receptacle; mechanism for reversibly applying the driving power to the tilting support so as to tilt the latter alternately in opposite directions; and an automatic stop device applied to automatically disconnect the driving power from the tilting support.

24. In a machine for mixing concrete and the like, a rotary mixing-receptacle; a tilting support for the rotary mixing-receptacle; mechanism for reversibly applying the driving power to the tilting support so as to tilt the same alternately in opposite directions; a starting-lever M, and power-transmitting connection between said lever and the mechanism for reversibly applying the driving power to the tilting support.

25. In a machine for mixing concrete and the like, a rotary tilting mixing-receptacle provided with charging and discharge openings; and a movable hopper arranged to couple with the charging-opening of the rotary mixing-receptacle, the-hopper being supported for movement in directions to permit it to couple with the charging-opening of the rotary mixing-receptacle, when the latter is in receiving and mixing position, and to uncouple and move away from the rotary mixingreceptacle in order to permit the latter to tilt.

26. In a machine for mixing concrete and the like, a rotary, tilting mixing-receptacle provided with charging and discharge openings; and a vibratory, pendent hopper adapted and arranged for coupling with and uncoupling from the charging-opening of the rotary, tilting mixing-receptacle when the latter is in receiving and mixing position.

27. In a machine for mixing concrete and the like, a rotary, tilting mixing-receptacle provided with oppositely-arranged charging and discharge openings and having its charging-opening formed or extende'd through a hollow neck; and a movable hopper having its discharge-opening through a hollow neck adapted to telescope with said hollow neck of the rotary mixing-receptacle, the hopper being movable in directions to couple with and uncouple from the rotary mixing-receptacle.

28. In a machine for mixing concrete and the like, a rotary, tilting mixing-receptacle; and a vibratory hopper arranged to automatically couple with the rotary mixing-receptacle when the latter is tilted into position for receiving and mixing.

29. In a machine for mixing concrete and the like, a rotary mixing-receptacle provided with oppositely-arranged hollow journals respectively forming charging and discharge passages; a tilting support for the rotary mix- IIO ing-receptacle provided with antifriction-rolls forming bearings for the hollow journals of the rotary mixing-receptacle; and a pendent, swinging hopper having a hollow neck or short spout adapted to couple with and uncouple from one of the hollow journals of the rotary mixing-receptacle.

30. In a machine for mixing concrete and the like, a rotary mixing-receptacle provided with oppositely-arranged charging and discharge openings; a tilting support for the rotary mixing-receptacle; a movable hopper which is normally in position to connect with and discharge into the rotary mixing-receptacle 5 and a stop device for automatically stopping the tilting support when the latter is brought into position to place the chargingopening of the rotary receptacle in register with the discharge-opening of the hopper.

31 In a machine for mixing concrete and the like, a rotary, tilting mixing-receptacle having oppositely-arranged charging and discharge openings; a movable hopper having a laterally arranged discharge opening, and normally in position to place its dischargeopening in alinement with the charging-opening of the rotary mixing-receptacle when the latter is in mixing and receiving position.

32, In a machine for mixing concrete and the like, a rotary mixing-receptacle a tilting support for the rotary mixing-receptacle; a vibratory hopper; a stop device for stopping the tilting support when the rotary mixing-receptacle is in position to connect a movable member arranged for swinging the hopper away from the mixing-receptacle and tilting support therefor.

33. In a machine for mixing concrete and the like, a rotary mixing-receptacle having charging and discharge apertures; a tilting support for the rotary mixing-receptacle; and a valve or door hung upon the tilting support and arranged for automatically opening and closing the discharge-aperture of the rotary mixing-receptacle according to the directions in which such receptacle is tilted.

34. In a machine for mixing concrete and the like, a rotary mixing-receptacle having charging and discharge apertures; a tilting support for the rotary mixing-receptacle; and a gravity valve or door H hinge-supported upon the tilting support and arranged for opening and closing the discharge-aperture of the rotary mixing-receptacle, said valve or door being hung so that when the mixing-receptacle is tilted into position for discharging its contents, its discharge-aperture will relatively move away from the suspended valve or door and thereby open to permit the discharge. 1

v 35. In a machine for mixing concrete and the like, a rotary, polyhedric mixing-receptacle supported to revolve about a tilting axis, and having oppositely-arranged charging and discharge openings respectively adapted to receive the materials for a batch, and for discharging the mixed-up batch, the charging and discharge openings being formed at opposite corners or vertices formed by the planes of the sides of the receptacle, and the latter being supported to permit its axis of revolution to be tilted into an inclined position so as to depress the discharge-opening and allow the mixed-up batch to discharge through the same.

WILLIAM J. JUDD.

Witnesses:

H. J. SCHEUBER, JOHN SULLIVAN. 

